diff --git a/libfwsi.spec b/libfwsi.spec
index 77615f6..da3a0ad 100644
--- a/libfwsi.spec
+++ b/libfwsi.spec
@@ -31,7 +31,7 @@ Source9:        Windows_Shell_Item_format.pdf
 Patch1:         system-libs.patch
 BuildRequires:  %{python_module devel}
 BuildRequires:  c_compiler
-BuildRequires:  gettext-tools >= 0.18.1
+BuildRequires:  gettext-tools >= 0.21
 BuildRequires:  libtool
 BuildRequires:  pkg-config
 BuildRequires:  python-rpm-macros